Description
The Chelsea 272 Series Power Take-Off Assembly, part number 272RDKUP-B3BD or 272RDKUPB3BD, is a 6-bolt hot-shift PTO designed for medium-duty truck applications in towing and recovery, aerial, construction, and water truck markets. It features a 1-1/4″ round output shaft with a 5/16″ key and shifts via pneumatic air switch or hydraulic PowerShift. Continuous torque capability reaches 300 lb-ft (407 Nm), with intermittent torque rated at 201-300 lb-ft (401-500 Nm). Output power is 56+ HP (41-50 kW). The 272 Series consolidates multiple earlier Chelsea PTO series into one versatile platform with rotatable flanges, an integral air control valve, a wet-spline option for extended component life, and Smart-Start capability for high-torque engagement. Compatible with Ford, Allison, Eaton/Fuller, Aisin, Volvo/Mack, RAM, and other transmission manufacturers. Call us to confirm proper fit for your application.
Features
6-bolt mounting with rotatable flanges for flexible installation
1-1/4″ round output shaft with 5/16″ key
Pneumatic air switch or hydraulic PowerShift engagement
Integral air control valve included
Continuous torque rating up to 300 lb-ft (407 Nm); intermittent torque 201-300 lb-ft (401-500 Nm)
Wet-spline option for extended PTO and pump shaft service life
Smart-Start option for high-torque start-up conditions
Tech Specs
- Intermittent Torque: 201-300 lb-ft (401-500 Nm)
- Continuous Torque: 300 lb-ft (407 Nm) – Check Application Pages for Actual Torque Ratings
- Mounting Type: 6-Bolt
- Output Shaft Type: 1-1/4″ Round with 5/16″ Key
- Output Power: 56+ HP (41-50 kW)
- Shaft Power at 500 RPM: 29 HP (21 kW); at 1000 RPM: 57 HP (43 kW)
- Shift Type: Pneumatic (Air Switch) or PowerShift (Pneumatic/Hydraulic)
- Compatible Transmissions: Ford, Allison, Eaton/Fuller, Aisin, Volvo/Mack, RAM, and others
